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This patch implements the --push-state and --pop-state options. Unlike Gnu ld, gold implements this as a true stack: push and pop may be nested to any depth. The -r , -n, and -N options are listed in the Gnu linker manual among the saved options, but they are not position-dependent options, and have nothing to do with the treatment of input files. I have not included them in the list of options saved. The position-dependent options saved by --push-state in gold are: --as-needed/--no-as-needed -Bdynamic/-Bstatic/-dy/-dn --format --whole-archive/--no-whole-archive --incremental-changed/-unchanged/-unknown -cary 2016-12-01 Cary Coutant <ccoutant@gmail.com> gold/ PR gold/18989 * options.cc (General_options::object_format_to_string): New function. (General_options::copy_from_posdep_options): New function. (General_options::parse_push_state): New function. (General_options::parse_pop_state): New function. * options.h (--push-state, --pop-state): New options. (General_options::object_format_to_string): New method. (General_options::set_incremental_disposition): New method. (General_options::copy_from_posdep_options): New method. (General_options::options_stack_): New data member.
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push-state.patch
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